Introduction to The Hardware Structure and Startup Process of Cisco Switches|LinkNewNet

New Products

New Promotion

-50%

C9500-40X-A

$4000 $2000

-29%

C9300-24T-A

$1750 $1250

-31%

DS-C9250I-K9

$1600 $1100

-38%

WS-C2960L-48PQ-LL

$800 $500

-42%

A9K-750W-AC

$600 $350

New Accessories

Introduction to The Hardware Structure and Startup Process of Cisco Switches

Aug 18 , 2022 907

First, the hardware structure of the Cisco switch

computing system ---- CPU
power system
interface system
storage system

Flash: Hard drive, store iOS and configuration commands

RAM: memory

ROM: read only memory

Description:

1ROM function: boot system, password recovery, system recovery or upgrade

Composition: bootstrap program: bootloader, used to boot the operating system

Switch program: used for password recovery and system upgrade

POST program: used to implement power-on self-test

Second, the introduction of the startup process of the Cisco switch

power-on self-test POST
load and run bootstrap from the ROM to start the microcode
looking for IOS image files (flash)
loading IOS image file (RAM)
looking for a configuration file (NVRAM)
load the configuration file (RAM)
normal operation

The hardware structure of the Cisco switch and the startup process of the switch are introduced here. If you have other needs, please consult our online customer service.

Next: What are the types of Cisco switches? How to choose the right switch?

Tags: Cisco switch

Related Blogs

Sep 26 , 2024

What is the difference between a router and a switch?

In the modern networking world, we often use routers and switches for networking, and they play an important role in network circulation in their respective fields. Due to the many similarities in the functions of these two devices, many people are confused about what exactly is a router? What is a switch is more or less confused. What are the differences between them? Today we will reveal them one by one.

Sep 21 , 2024

Creating and Deleting VLANs on Cisco Switches

In modern enterprise networks, VLANs play a very important role in network transmission. Administrators can use VLANs to divide a physical switch into multiple logical switches to simplify network management and improve network performance and security. As network administrators, learning how to create and delete VLANs on Cisco Catalyst switches is a must-have skill.

Sep 10 , 2024

Cisco 3750X Switch vs 3850 Switch, which is better for your business?

When choosing an enterprise switch, network administrators and IT engineers often encounter a situation where they are torn between two models, especially products with similar performance, such as the Cisco 3750X and 3850 series is a typical example. These two switches, as Cisco's classics, have a wide range of applications in the market. So, what is the difference between these two? And how are they related to each other?

Sep 04 , 2024

What is console cable? How to manage the switch easily through console cable?

In modern IT equipment management, the switch is the core of the network, and to manage it in the simplest way during daily use, it is indispensable to support the Console cable. Although many people do not understand this small cable, but it is the network administrator's daily work in the “secret weapon”. Whether you are configuring a device for the first time or troubleshooting a problem, the console cable is an indispensable networking tool.

Aug 29 , 2024

How do I connect a Cisco wireless AP to a wireless controller?

Wireless access points are primarily responsible for providing wireless signal coverage and connectivity, while wireless controllers are responsible for centrally managing and optimizing the performance and security of multiple access points. Used in combination, the two can build an efficient, stable and secure wireless network. How to connect wireless controller with wireless access point

Jul 05 , 2022

Cisco Catalyst 2960 Series Switches Overview

Cisco Catalyst 2960 series switches provide services for conventional office, branches, workspaces, medium-sized deployments and infrastructure networks. This series offers forwarding bandwidths up to 100-108 Gigabyte per second (Gbps) and switching bandwidth, which is full duplex up to 216 Gigabyte per second (Gbps). In addition, this series includes several other sub-series: Cisco 2960S, Cisco 2960X, Cisco 2960+, Cisco 2960L, and 2960XR.

Jul 05 , 2022

How To Upgrade IOS On Cisco 3560 Switches?

Do you want to upgrade Cisco 3560 switch IOS? It is very easy, you only need to do these 4 steps. Below are the details about how to do it.

Jul 05 , 2022

Top 9 Reasons for Network Switches Failure

The switch will inevitably encounter failures during normal use. Network switch failures can cause network downtime, affecting our business, production, and damage to our property, so we have to troubleshoot and repair the switch in the shortest possible time. Here we introduce you to the 9 common hardware and software failures of the switch.

Jul 06 , 2022

What Are the 4 Types of Network Switches?

The Internet of Everything is inseparable from the essential network equipment - switches, which will play a vital role in the networking of the Internet of Things. Below is an introduction to four network switch architectures, their types include Cascade Connection,Port Aggregation,Stacking,Layered.

Jul 06 , 2022

How Do I Troubleshooting Cisco Switches Hardware Issue

During the daily use of the switch, we may encounter some failures, the faults of the switch are mainly divided into two categories. The first type is a hardware failure, which is a problem on the hardware. The second type is software failure, which is a problem inside the switch. Now let's troubleshooting the hardware failure.